Cooler.



No. 703477. Patented June 24, |902. H. H. B'uFFuM.

COOLER.

(Apulicatnn led Sept. 16, 1901.)

(N0 Model.)

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UNITED STATES PATENT OFFICE.

HERBERT I-I. BUFFUM, OF ABINGTON, MASSACHUSETTS.

COOLER.

SPECIFICATION forming part of Letters Patent No. 703,177, dated June 24,1902 Application tiled September 16, 1901. Serial No. 75,505. (Nomodel.)

To all whom z 11i/ty concern.-

Be it known that I, HERBERT II. BUEEUM, of Abington, in the county ofPlymouth and State of Massachusetts, have invented certain new anduseful Inprovements in Coolers, of which the following is aspecification.

This invention relates to apparatusmsuch as heaters, coolers, orcondensers-for' transferring heat from one iiuid to another, having aseries of pipes and a pipe rack or holder common to a plurality of thepipes.

The object of the invention is to provide an improved form of joint orconnection between the pipes and between the pipes and the rack whichshall be characterized by increased tightness, lexibility, anddurability, and facility for assembling and taking apart.

0f the accompanying drawings, Figure l represents a side elevation of aportion of an apparatus provided with my improved form of joint. Fig. 2represents a longitudinal section thereof. Fig. 3 represents a sectionon the line 3 3 of Fig. 2.

The same reference characters indicate the same parts in all the igures.

In the drawings, l represents a fiat plate constituting apipe rack orholder common to a plurality of pipes, and 2 2 represent a series ofpipes, two of which are shown in the drawings, having their endssupported by or mounted in said plate. The plate lis formed withscrewthreaded holes 3 3, and the ends of the pipes are provided withannular anges or projections 4 4:, which are made of slightly lessdiameter than these holes in order that the ends of the pipes may beinserted and withdrawn through the holes. An abutment for the flanges 4is provided by screwing into the holes 3 bushings 5 5, which closelyembrace the pipes back of the flanges t and are each dividedlongitudinally into two halves in order to assemble them with or removethem from the pipes after the flanges have been formed on the latter.

6 is a returnbend or elbow connecting the two pipes 2 2 and forming acontinuous conduit therewith. Its ends are formed with shoulders orflanges 7 7, between which and the anges 4 on the ends of the pipes areinserted yielding packing-gaskets 8 8 and are further formed withannular extensions or sleeves 9 9, which project past the gaskets intothe ends of the pipes 2 2 and serve to limit the inward extension of thegaskets under compression and also to hold the legs of the return-bendin axial alinement with the pipes. The bend 6 is drawn into engagementwith the gaskets 8 by means of a bolt or screw 10, whose head abuts theunder side of the plate l and whose stem passes through a hole in saidplate and screws into a socket formed between the ends of the bend 6.This bolt also serves to removably hold the bend and the pipes inassembly with the rack l. The resulting structure is fluid-tight andiiexible, capable of withstanding rough usage without leaking, andeasily assembled or taken apart.

I claim'La l. The combination of a pipe-connecting rack or holder formedwithra yplurality of holes, pipes projecting through said holes andconnected by said holder and formed with flanges overlying one face ofthe holder, a return-bend connecting the pipes and hav ing a telescopicconnection therewith, and means connective of the holder and thereturnbend and detachably holding the same and the pipes in assembly.

2. The combination of a pipe-connecting rack or holder formed with aplurality of apertures, longitudinally-divided bushings in saidapertures, pipes projecting through the bushings and connected by saidholder and formed with flanges overlying said bushings, a return-bendconnecting the pipes, and means connective of the holder and thereturn-bend and detachably holding the same and the pipes in assembly.

In testimony whereof I have aliixed my signature in presence of twowitnesses.

HERBERT H. BUFFUM.

l/Vitnesses:

G. BATCHELDEE, C. F. BROWN.

